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JOURNEYMAN (Electrical Engineering) EXAM PREP MULTIPLE QUESTIONS AND ANSWERS RATED A.
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JOURNEYMAN (Electrical Engineering) EXAM PREP MULTIPLE QUESTIONS AND ANSWERS RATED A.
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JOURNEYMAN (Electrical Engineering) EXAM PREP MULTIPLEQUESTIONS AND ANSWERS RATED A.
1. 1. Which of the following do three 150 volt parallel d
circuits produce the total current ?
a . 50 volts
b . 150 volts
c . 225 volts
d . 450 volts
2. 3. If a custodian in your building finds out that an c
office worker is using a hot plate on a circuit that
already has a lot of appliances plugged into , the
safest thing to do is to :
a . remove the hot plate from the office when its owner
is not present
b demand that the office worker remove the hot plate
immediately
c . write a report to the supervisor of the office re-
questing corrective action
d . ignore the situation
3. 4. The following conditions must be met for branch c
circuits to be de rived from autotransformers :
a . The grounded conductor is protected from access
by unauthorized personnel .
b The autotransformer operates at less than 600 volts
nominal
c. An electrical connection is made be tween the
grounded conductor of the supplied circuit and the
grounded conductor of the system supplying the
auto transformer
d . All of the above
4. 5. It is permitted to tap two - wire AC circuits with a
ungrounded conductors from circuits that have one
of the following :
a . Two switching devices
b . Switches with multiple poles that operate automat-
ically
c . Conductors that are grounded
d . None of the above
,JOURNEYMAN (Electrical Engineering) EXAM PREP MULTIPLE
QUESTIONS AND ANSWERS RATED A.
5. 6. The voltage between the line and grounded neutral a
of a 208 volt , 3 phase , 4 wire circuit power supply is
approximately volts .
a 120
b . 208
c . 220
d . 240
6. 7. Limiting the total number of circuits in an enclosure a
achieves the following :
a Reduces the effects of short circuits
b . Eliminates over - expansion in the future
c . Makes qualified workers easily accessible
d . Provides a standard for the Authority Having Juris-
diction
7. 8. Circuits rated at less than 100 amps , or with con- b
ductors sized between 14 AWG and AWG are only
suitable for conductors of the following ratings :
a . 55 degrees C ( 131 degrees F )
b . 60 degrees C ( 140 degrees F )
c . 75 degrees C ( 167 degrees F )
d . 80 degrees C ( 176 degrees F )
8. 9. Covers for underground pull boxes used for cir- d
cuits over 600 volts that are not locked , bolted or
screwed must weigh the same as :
a . 25 pounds
b . 50 pounds
c 75 pounds
d 100 pounds
9. 11. Parallel circuits experience the following total a
power loss
a . Dissipation of individual power
b . Multiple the circuits the sum of their individual
circuits
c . The total current flowing through each branch of
, JOURNEYMAN (Electrical Engineering) EXAM PREP MULTIPLE
QUESTIONS AND ANSWERS RATED A.
the circuit
d None of the above
10. 12. If the number of circuits in an enclosure is limited F
, it will not be possible to minimize the effects of a
ground fault in just one circuit .
a True b . False
11. 13. An independent grounding connection must be F
for any new current transformer associated a poten-
tially energized circuit .
a . True b . False
12. 14. A feeder's calculated load must be 75 % or less of F
the sum of branch circuit loads after derating factors
are applied
a . True b False
13. 15. To supply power to screw shell lamp holders volt- F
ages over 120 volts between conductors must not
exceed 277 volts .
a True b . False
14. 3. According to Kirchoff's current law , electrical cur- B
rent will do which of the following in parallel circuits
:
a . Combine in the parallel path
b . Divide and flow through each parallel path
c . Increase in voltage
d . Experience a voltage drop
15. 4. When electrical current is given mul tiple conduc- F
tive paths to flow the cur rent will always take the path
of least resistance .
a . True b False
16. 1. Electrical wires were covered with asbestos protect B
them from damage
A. high voltage
B. high temperatures
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